Submission #1012369

#	Time	Username	Problem	Language	Result	Execution time	Memory
1012369		hengliao	Swap (BOI16_swap)	C++17	10 / 100	427 ms	262144 KiB

swap

#include<bits/stdc++.h>
#include <chrono>
#include <random>
using namespace std;

#define F first
#define S second
#define pb push_back
#define vll vector<ll>
#define pll pair<ll, ll>
typedef long long ll;

const ll mxN=2e5+5;

ll n;
ll a[mxN];

void solve(){
	vll tep(n);
    for(ll i=1;i<=n;i++){
        tep[i-1]=a[i];
    }
    vector<vll> ans;
    for(ll mask=0;mask<(1LL<<n);mask++){
        if(mask&1) continue;
        vll tep2=tep;
        for(ll j=1;j<n;j++){
            if(mask&(1LL<<j)){
                swap(tep2[(j+1)/2-1], tep2[j]);
            }
        }
        ans.pb(tep2);
    }
    sort(ans.begin(), ans.end());
    for(auto &it:ans[0]){
        cout<<it<<' ';
    }
    cout<<'\n';
}

int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

    cin>>n;
    for(ll i=1;i<=n;i++){
        cin>>a[i];
    }

	solve();
	return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 0 / 11
• Subtask 3: 0 / 27
• Subtask 4: 0 / 20
• Subtask 5: 0 / 32